Question

Ampulla of internal ear
(1)
Are swollen bases of semicircular canals those have macula.
(2)
Are swollen bases of semicircular canals those have crista.
(3)
Are organs for static balance and located in utriculus and sacculus.
(4)
Are organs for dynamic balance and located in utriculus and sacculus.​

Answer 1

Answer:

1 The ampullary cupula, or cupula, is a structure in the vestibular system, providing the sense of spatial orientation. The cupula is located within the ampullae of each of the three semicircular canals.

The base of canals is swollen and is called ampulla, which contains a projecting ridge called crista ampullaris which has hair cells. The saccule and utricle contain a projecting ridge called macula.

Each semi-circular canal lies in a different plane at right angles to each other. The membranous canals are suspended in the perilymph of the bony canals. The base of canals is swollen and is called ampulla, which contains a projecting ridge called crista ampullaris which has hair cells.

The utricle and saccule are the two otolith organs in the vertebrate inner ear. They are part of the balancing system (membranous labyrinth) in the vestibule of the bony labyrinth (small oval chamber). They use small stones and a viscous fluid to stimulate hair cells to detect motion and orientation.

Explanation:

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